explain 15 7/12 + 4 3/20 + 5 4/15
⚠ 15 7/12 is read as the mixed number 15 + 7/12
⚠ 4 3/20 is read as the mixed number 4 + 3/20
Let's evaluate: 15 + 712 + 4 + 320 + 5 + 415
ℹ15 + 4 = 19
19 + 712 + 320 + 5 + 415
ℹ19 + 5 = 24
24 + 712 + 320 + 415
ⓘTo add fractions, put them over the same denominator, then add the numerators: 712 + 320 = 7×5 + 3×312×5
24 + 7×5 + 3×312×5 + 415
ⓘMultiplications are done before additions and subtractions: 7×5 = 35‖12×5 = (10 + 2)×5 = 10×5 + 2×5 = 50 + 10 = 60
ℹ3×3 = 9
24 + 35 + 960 + 415
ⓘThe numerator and the denominator are computed before the division: 35 + 9 = 44
24 + 4460 + 415
ℹ4460 + 415 = 44 + 4×460
24 + 44 + 4×460
ℹ4×4 = 16
24 + 44 + 1660
ℹ44 + 16 = 60
24 + 6060
ⓘWe simplify the fraction by dividing the numerator and the denominator by the number 60: 6060 = 1×601×60 = 11
24 + 1
▶Result:   25